Sin delves deeper into the world of Spire, and includes:
• Two new classes: the divine confidence trickster Gutter Cleric and the necromantic bureaucrat Mortician Executioner
• Extensive sections on the Crime, Order and Religion domains with dozens of new abilities, hundreds of plot hooks and fiction tidbits, four evocative maps, and dozens of beautiful illustrations by Adrian Stone
• Three ready-to-run scenarios, pitching the player characters headlong into a world of squabbling holy orders, mysterious librarians, demonic artefacts, overclocked noir magic, interdimensional breaches and hotwired harvest god avatars
